#1A257E#1A257E

#1A257E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.4% C 0.149 H 269.9°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1A257E
RGB	rgb(26, 37, 126)
HSL	hsl(233, 66%, 30%)
HSV	hsv(233, 79%, 49%)
CMYK	cmyk(79.4%, 70.6%, 0%, 50.6%)
CIE-LAB	lab(20.24, 29.29, -51.34)
CIE-LCH	lch(20.24, 59.10, 299.70°)
OKLab	oklab(32.43% -0.0003 -0.1486)
OKLCH	oklch(32.43% 0.149 269.9)
XYZ	xyz(4.8522, 3.0486, 20.0673)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A257E #7E731A

analogous

#1A577E #1A257E #411A7E

triadic

#1A257E #7E1A25 #257E1A

tetradic

#1A257E #7E1A57 #7E731A #1A7E41

square

#1A257E #7E1A57 #7E731A #1A7E41

split-complementary

#1A257E #7E411A #577E1A

monochromatic

#050719 #10164B #1A257E #2434B1 #3C4DD7

Accessibility & contrast

On white

13.05

#1A257E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1A257E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A257E

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A257E	#FFFFFF	#000000	##FFFFFF
##1A257E	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003681

Deuteranopia (green-blind)

#002C7C

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1a257e;
/* rgb */ color: rgb(26, 37, 126);
/* oklch */ color: oklch(32.4% 0.149 269.9);

Tailwind

colors: {
  custom: {
    50: '#695fa4',
    500: '#1a257e',
    950: '#000000',
  },
}

SCSS

$custom: #1a257e;
$custom-light: #695fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1a257e",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 126
  },
  "hsl": {
    "h": 233.4,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32427,
    "c": 0.14861,
    "h": 269.9
  },
  "luminance": 0.03049
}

Semantic roles & 50–950 ramp

primary

#1A257E

secondary

#B2A642

accent

#D63FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1A257E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →